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Cushion|Lab Grown|IGI

3.10ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG784688760

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG784688760

Diamond specifications and retailer prices

From £391 GBP
$524 USD
As of October 29, 2026
Save £1,230 GBP (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,621 GBP at Brilliance · As of October 28, 2026
View at Brilliance

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG784688760 or 784688760. Listed at 13 retailers as of October 28, 2026, with prices from £391 to £1,621, a £1,230 spread on the same certified stone. Brilliance lists it at £1,621. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.10
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784688760
Dimensions8.59 × 8.45 × 5.65 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.59 mm8.45 mm3.10 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784688760
Side View
Table 62.0%Crown 35.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 66.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,621 GBP|Low: £349 GBP|High: £3,470 GBP|Avg: £1,191 GBP
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 29, 2026
Retailer 16£391 GBP
Retailer 13£478 GBP
Retailer 9£537 GBP
Retailer 11£546 GBP
Retailer 12£660 GBP
Retailer 4£676 GBP
Retailer 2£716 GBP
Retailer 8£789 GBP
Retailer 14£940 GBP
Retailer 15£1,081 GBP
Retailer 5£1,415 GBP
Retailer 3£1,428 GBP
Retailer 10£1,600 GBP
Brilliance£1,621 GBP
Retailer 6£1,633 GBP
Retailer 7£3,470 GBP

3 data points across 16 retailers

13 retailers£391 GBP to £1,621 GBP

A
Cheapest Retailer
-
£391 GBP
$524 USD
Final sale: no returns
A
Retailer 2
-
£478 GBP
HK$5,000 HKD
View
A
Retailer 3
-
£537 GBP
$720 USD
View
A
Retailer 4
-
£546 GBP
View
A
Retailer 5
-
£660 GBP
$884 USD
View
B+
Retailer 6
-
£676 GBP
$906 USD
View
A
Retailer 7
-
£716 GBP
View
A
Retailer 8
-
£940 GBP
ZAR 20,356 ZAR
View
B+
Retailer 9
-
£1,081 GBP
$1,449 USD
View
B+
Retailer 10
-
£1,415 GBP
$1,896 USD
View
B+
Retailer 11
-
£1,428 GBP
$1,914 USD
View
B
Retailer 12
-
£1,600 GBP
View
Most Expensive
B
Brilliance
D46472206 · Oct 28
£1,621 GBP
$2,172 USD
View
12 more retailers have this diamond
Prices start from £391 GBPSave up to £1,230 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.10ct Cushion
£391 GBP